// forked from hacker_ij48yrxl's flash on 2009-5-10 package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Graphics; import flash.display.Shape; import flash.display.Sprite; import flash.events.Event; import flash.filters.BlurFilter; import flash.geom.ColorTransform; import flash.geom.Point; import net.hires.debug.Stats; [SWF(width="465", height="465", backgroundColor="0x000000", frameRate="30")] public class Asawon6 extends Sprite { public static const PERLIN_WIDTH:int = 40; public static const PERLIN_HEIGHT:int = 40; public static const WIDTH:int = 500; public static const HEIGHT:int = 400; public static const num:Number = 255; private var px:Number = 0; private var offset:Array; private var sh:Shape; private var bmd:BitmapData; private var p:Point; private var blur:BlurFilter; private var colorTf:ColorTransform; private var bmpData:BitmapData; public function Asawon6():void { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event = null):void { removeEventListener(Event.ADDED_TO_STAGE, init); // entry point //filters = [new BlurFilter(4,0)]; offset = [new Point(px += 0.5, 0), new Point( -px / 2, 0), new Point(0, 0)]; bmpData = new BitmapData(PERLIN_WIDTH, PERLIN_HEIGHT); sh = new Shape(); bmd = new BitmapData(465, 465, false, 0x0); p = new Point(); blur = new BlurFilter(8, 8); colorTf = new ColorTransform(1, 1, 1, 1, -2, -1, -1); addChild(new Bitmap(bmd, "auto", true)); //addChild(new Stats()); addEventListener(Event.ENTER_FRAME, loop); } private function loop(e:Event):void { Point(offset[0]).x = px += 0.5; Point(offset[1]).x = -px / 2; bmpData.perlinNoise(PERLIN_WIDTH, PERLIN_HEIGHT, 3, 6456, true, true, 2 | 1, false, offset); var g: Graphics = sh.graphics; g.clear(); g.lineStyle(1, 0xFFFFFF, 0.15); for (var j:int = 0; j < PERLIN_HEIGHT - 1; j++) { var value1:int = bmpData.getPixel(0, j); value1 = value1 >> 16; var value2:int = bmpData.getPixel(0 + 1, j); value2 = value2 >> 16; g.moveTo(0 * WIDTH / (PERLIN_WIDTH -1), value1 + HEIGHT / 2 - 128 + j * 3); for (var i:int = 0; i < PERLIN_WIDTH - 1; i++) { value1 = bmpData.getPixel(i, j); value1 = value1 >> 16; value2 = bmpData.getPixel(i + 1, j); value2 = value2 >> 16; g.curveTo(i * WIDTH / (PERLIN_WIDTH - 1), value1 + HEIGHT / 2 -128 + j * 3, (i + 1) * WIDTH / (PERLIN_WIDTH - 1), value2 + HEIGHT / 2 - 128 + j * 3); } } bmd.lock(); bmd.draw(sh); bmd.applyFilter(bmd, bmd.rect, p, blur); bmd.colorTransform(bmd.rect, colorTf); bmd.unlock(); } } }